Business Combinations - Summary of Aggregate Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 10,770.1	$ 9,934.2
Cayenne Medical, CTC, CDD and MedTech [Member]
Business Acquisition [Line Items]
Current assets	67.9
Property, plant and equipment	4.5
Intangible assets	213.4
Goodwill	340.9
Other assets	1.1
Total assets acquired	627.8
Current liabilities	21.5
Long-term liabilities	111.0
Total liabilities assumed	132.5
Net assets acquired	$ 495.3